Molding machine



March 23 ma, 1,571,597

H. SONNENERG l HOLDING MACHINE y Filed Oct. 2, 1924 ,dwg-'Z a nl w I, 7&5, j l l fr@ 52W .A Ik W L ATTORNEY March 23 9 i926. 1,577,597

H. SGNNENEERG HOLDING MACHI NE 5 fragmentary Patented Mar. 23, 1926.

UNITED STATES PATENT OFFICE.

HERMAN SONNENBERG, OF MIDDLE VILLAGE, NEW YORK.

MOLDING MACHINE.

Application filed October 2, 1924. Serial No. 741,190.

This invention relates to a molding machine, and is an improvement of the machine described in United States Letters Patent No. 884,228, dated April 7th 1908.

rlhe object of the invention is the production of a molding machine Wit-h a stationary bottom mold, a reciprocating upper mold and reciprocating plungers coacting with both of said molds.

The organization of the invention comprises a platform supported on a pair of legs, and the platform in turn supports a pair of guide frames. An auxiliary table supports a bottom mold, and a reciprocating crosshead has depending therefrom an upper mold. A third reciprocatingcross head has extending therefrom a plurality of dies or plungers'for both ofthe molds.

In the accompanying drawings Fig. 1 represents a front elevation of an exemplilication of the improved molding machine; Fig. 2 is a left hand view of Fig. 1; Fig. ."3 shows an enlarged fragmentary portion of Fig. 1; Fig. 4 indicates an enlarged section of Fig. 1 on the line 4, 4; Fig. `5 represents an elevation ofan inner bowl for a pipe; F ig. 6 indicates enlarged details of the machine partly lin vertical section; Fi g. 7 shows a partial section of Fig. 6 on the line 7, 7; Fig. 8 represents an elevation of another form of an inner bowl for a pipe; Fig. 9 repref-ients a side elevation partly in axial sei-tion of a pairof molds for the machine; Fig. l() is a left hand view of Fig. 9; 11 Hshows a` top plan view `of another rpair of molds for the machine; Fig. 12`is a section of Fig. 11 on the line 12, 12; Fig. 13 is a left hand side view' of Fig; 12; Fig.- 1,4- indicates a section of Fig. `12 on the line 14, 14; Fig. 14"* shows an elevation of a detail; Fig. 15 represents an elevation'of another forni of inner bowl for a pipe; Fig. 16 represents a fragmentary portion of Fig. 1 with avmodificatioin and Fig. 17 shows a Portion of Fs- 4 With a Biedt fictition.. t

The molding machine comprises a table with the similar legs 20, 21 each with the feet 22. A platform 25 is supported upon the legs 20 and 21. A pair of angle shaped braces 26 connect the legs 2O and 21. A b-ar 27 with the guide openings 28 extends between and is connected to the legs 20 and 21. A pair of guide frames 8O each with the bottom flange 81 and the guide opening 32 are supported upon and fastened to the platform 25. A plate 33 is located upon the top end of each of the frames 30, and a pair of connecting braces 84 have their ends supported upon the plates 33, and bolts 35 connect said plates and braces to the top ends of said frames.

A main shaft 3G is jouinaled in the journal bearings 87, which latter are bolted to the top face of the platform 25. A pair of pmions 38 are fastened to the shaft 36 adjacent to its ends. A pulley 40 for the belt 41 is fastened to one end ofthe shaft 36. A cam shaft 42 has its ends journaled in the upper portions of the legs 20 and 21. A pair of spur gears 48 are fastened to the cam shaft 42 and vmesh with the pinions 38. A pair of cams 46 are fastened to the cam shaft 42.

A pair of reciprocating members 47 are each indicated with the elongated opening 48, and have each formed therewith the top lug 49 and the bottom lug 50. VA shaft 51 extends through and is fastened to the lower ends of the members 47. A pair of rollers 52 are journaled on the shaft 51.

threaded at itspupper end for the nuts 62 and 68. v

A cross head has its ends guided in the guide openings 32 of the frame-s 30, and has openings formed therein for the threaded ends ofthe guide rods G1. The cross head Y65 is clamped to the guide rods `61 by means of the nuts 62 land 68.

The` lower faces of thecrosshead @als dovetailed as shown at Guidey collars 53 are fastened to the shaft 51 and 6T. The crosshead 05 has extending therethrough the elongated opening 60.

.ein upper niold indicated at .70 with the tapered end walls T1 which tightly engage the dovetails 67 of the said crossheal. A plurality of bushings T2 with the enlarge-fl lower ends 73 are secured in openings 74 in thev upper niold 70.

A11 ausiliariy table is indicated with the platform S0 with the depending flanges 81 and the extensions 82. The said extensions enter openings 8S in the frames 230, vand are locked in said openings b v` means of th wedge blocks 84. 11n elongated openingl 8 forme-:l iu the platform S0. y A bottoni mold 85111151 foi-ined Vwith its lower end the flanges o? and is provided with the cavities 88, which entend from its upper tage and; are aiiially in line with the open ings 74 of the upper niold 70. An openine' Si? extends troni the lower endV of each cavity `Sti through the said bottoni mold. Bolts 00"'r`a'stei1 the bottoni inold 80 to the platform 80. 4

A stripper plate 01 with a pluralityv of openiird 01n is detaehably located upon the top face of the bottoni in old S0 and has extending,` therethrough a pair of dowel pins 92, which are fastened `in the bottoni niold S6 and entend intothe openings 94 in the upper inold 70.

A journal pin extends froin each of the spur gears 43 and supports one end of the connecting rod 101. The upper end of the connecting rod is connected to the cross head 102. rEhe ends 1.023 ofthe cross head extend through the openings 32 of the frames 3,0 and projecting lugs 1,04 of the cross head 102 bear against the .inner faces of the franics 30. A bracket 104l with the c vlindrital Shank 104" lia-ving` the `groove 10ftC is rotatablyY connected to the side of the ends 10?; ot' the cross head 102 by the bolts 104. A plunger holder 105 is bolted to the lower face of the cross head 102 by nit-ans of the bolts 106, and dies or plunger-s 107 have their upper ends located in openings in said holder, and are clamped in place by means of the screws 108. The said plnng'ers are axially in line with the openings T4. in the upper niold 70.r rthe plungeri 10.17 have extending from their lower ends the pins 110.

A. har has itsends journaled in the guide frame 30 and has fastened thereto the arras 110. 11n operatinfhf'v handle 11S has one. end fastened to one end of the bar 115. l-eferring; to 5, 7 and 8, a modified bottoni inold has fornied therewith the tapered cavities 121 with the lower opening 122 and the tianges 123. ,The said bottoni inold is placed upon nd lfastened te the auxiliary table liavil'igi the platform 80. Stripper rods extend through the openings 122 and each are provided with the head or cap 125. The lower ends of the stripper rods 125 extend through openings in the bar 1255 and are fastened in place by nieuns of the screws 120. The liar 128 is positioned so that the arnis 110 can hear up against its lower face. lVith the bottoni inold 120, suitable plungers not shown, are provided for thel plunger holder 105. The stripper plate 91 with its openings 91"L are used with the construction indicated in Figs. (3, and 8.

Referring to Figs. 9 and 10, a niold is shown with the nieniher having the upper tapered end 136 and the lower tapered end 137, and the coactine nrcinber 1238 with the upper tapered -end 139 and lthe lower tapered end 140. Dowel pins 142 are provided for the ineinhers 135 and 3S to niaintain theni in proper position. The iuei'i'iheis 12:35 and 138' have formed therein cavities 145 which conform to the pipe or bowl that is to be molded. Rods 140 extend into the inold to said cavities. The rods 146 are each fastened to a supporting` knob 14T by means of the screws 14S. Rods with the nienibers 146d and 149 are also provided for the inenibers of the inold.v A bottoni support 153 with the inclined inner walls 154 supports the lower ends of the n'iei bers 135 land 138; A cap 155 with the tapered walls 15G is provided for the upper ends of the inenibers 135 and 138. The cap 155 is detachably connected to the cross head (55 and the bottoni support 153` is fastened to the platform 53,0.

Referring` to Figs. 11, 12, 13, 14, and 14 a inold is indicated with the top nieinher 100 having the plurality of tapered cavities 151. A' bottoni ineinber 162 has formed therein a plurality of small openings 103 which connectwith larger openings 164. The openings 163 and 104 are axially in line with the cavities 101. Frein the bottoni `ineinber 102 extenda pluralitf,7 of dowcl pins 10E). A niiddle plate comprises the members and 171 and on the inner edge of each of .iid nienibers are formed a pluralit)7 of threads 172. The threads of one nieniber with the threads of the other nieniber, when the inner edges ofsaid inenibers 170 and 171 bear against each other. forni a plurality of coin pletethreads.l The 1neinbers'170 and ll have openings that register with the dii-wel pins'lGD'. lflnld plates 175 with the elongated openings 176 are bolted to the top nienihcr 100- by ineens of the bolts 17T.

Referring to 1G a modification of the invention is shown.

The legs 20 are again shown with the iilatforniiii. The auxiliary table is airain in icat-edl with the platform 80. Vthe guide frames are snpwn at' 30. The bottoni niold 1201s shown supported upon the platform 80. The"stripper rods 125 are indicated With the ller 128, .Frein the be? 128 @mnd journal lugs 180 to which are journaled rollers 181. The shaft 42 with its appurtenances already described has also provided therefor the cams 182 which coac-t with the rollers 181. Referring to Fig. 17 the cross head is indicated with the upper mold 190, the bottom mold 191 is support-ed on the platform 80. Rods 192 similar to the rods 146 are provided for the molds. The molds 190 and 191 are used for molding pipes similar to the pipes formed with molds shown in Figs. 9 and 10. y

To use the molding machine and referring particularly to Figs. 1 to 5 inclusive, the clay or other material used to produce the objects to be molded is inserted in the cavities 88 of the bottom mold 86. The pulley 40 is turned, by means of the belt 41, and thereby through the main shaft 36, the pinions 38 are turned. The spur gears 43 turn with the pinions 38, whereby the cam shaft 42 is turned. The cams 46 revolve with the turns of the shaft 42, and thereby through the coaction of the rollers 52 and 59, the members 47 are reciprocated and whereby the cross head 65 is lowered to bear upon the stripper plate 91 and at the proper time is raised. At the same time, by reason of the turning of the spur gears 43, the cross head 102 is lowered and the plungers 107 descend through the bushings 72 of the upper mold and enter the cavities 88 of the bottom mold`86, and the clay or other material is shaped to the proper form to produce the inner bowl 185 with the opening 186 and flange 187 for a pipe. Next the stripper plate 91, when the cross head 65 is in its elevated position, is removed from the bottom mold 86 and thereby the bowls 185 are removed fromsaid bottom mold.

When bowls like 190, shown in Fig. 8 :are to be made, the bottom mold is substituted for the bottom mold 86. The clay or other material is fed into the cavities 121, and suitable plungers or dies not shown extend from the cross-head 102` To eject the bowls after being formed, from the cavities 121, the operator bears on the operating handle 118, and the arms 116 which bear up against the bar 128 will raise the latter, thereby the stripper rods with their caps 126 are lraised and loosen the bowls 190 from the vcavities 121 of the bottom mold 120.

The cams 182 may be shaped so that the stripper' rods 125 will follow the movements of the plungers of the molds moving at the 'same speed, or they may be shaped so .that the plungers are released from theobjects molded before the stripper rods push 'the objects molded out of their molds.

Vhen pipes are to be molded, the molds indicated in Figs. 9 and 10 are used. The vclay is inserted in the cavities and the rods 146 and those with the members 149 and 1461er@ used tetona the stemopnngs of the pipes. Suitable plungers operate with this mold and when the pipes are to be extracted from the molds the members 135 and 1538 are separated.

rlhe molds shown in Fig. 17 are used to produce pipes similar to those produc-ed with the molds shown in Figs. 9 and 10 as already stated. lVhen a bowl like 200 with the threaded shank 201 and opening' 202 (Fig. 15) is to be formed, the bottom mold with the members and 162 (Figs. 12 to 14) is used. Suitable plungers not shown are reciprocated by the cross head 102. The members 160 and 162 with their appurtenances are assembled as shown inthe drawings when the bowls 200 are being formed. To remove the bowls 200 the members 160 and 162 are separated, when the members and 171 can easily be detached. The operator then forces the bowls 200 out of the cavities 161. by bearing on the outer face of each of the Shanks 201. Various modifications may be made in the invention and the present exemplitication is to be taken as illustrative and not limitative thereof.

Having described my invention what I desire to secure by Letters Patent and claim 1. In a molding machine the combination of a table, connected thereto, a bottom mold.

4the machine, connections between said meme bers and the cross head., said cams adapted to reciprocate said members, a second reciprocating cross head in the machine and plungers depending from the second cross head coacting with both of said molds.

2. In a molding machine the combination of a pair of legs, a pair of guide frames above said leg-s, an auxiliary table connected to said frames, a bottom mold supported on said table, a cross head with its ends guided by said frames, an upper mold depending from said cross head, a cam shaft with its ends journaled in said legs, .means to turn the cam shaft, a pair of cams fastened to the cam shaft, a pair of members guided in themachine, said members reciprocated by said cams, connections between said members and said cross head, an upper mold depending from said cro-ss head, a second reciprocating cross head in the machine and plungers depending from said second cross head coacting with both lof said molds.

i v6 In a molding machine the. combination 'of a pair of' legs, a platform,supported on in openings in said guide trames, an upper mold dependingfrom said cross head, a cam shaft journalcd in the legs of the machine, means to turn the cam shaft, a pair o1E cams fastened to the cam shaft, a pair ofreciproeating` members, each with an elongated peningfor the machine, said cam s hatt eX- tending through the openings of said members` means to guide said members, a rod `with one eid ot' each extending trom the upper end of each ot' said members and the other ends oi said rods connected to said cross head. rollers journaled to each of said members adapted to coact With said cams to recipi cate said members, a second cross- Vhead with its ends guided in said guide trainee. means to reciprocate the second crosshead and plungers depending Vfrom said second crosshead coacting with both of said niolds.

5"-, In a moldingv machine ,the combination of table connected thereto, a bottom mold supported on said table, a crosshead guided in the machine, an upper mold dependurcY trom said crosshead, a cam shaft journaled in the machine, n'ieans to turn the cam shaft, cams tastened to the lam shaft, a pair of raided reciprocating members in the mabhine. 'connections between saidv members and said crosshead said cams adapted to reciprocate said members, a second reciprocatingr` crosshead in the machine, plungers dependingI from the second crosshead coactmg with both of said molds, stripper rods extending` into the lower molds, a bar connectine' the lower ends of the stripper rods and means to raise said bar to elevate the stripper rods to loosen the objects made by the molds from the same.

5. ln a molding machine the combination ot a table connected thereto, a bot-tom mold supported on said table, a crosshead guided in thc machine, an upper Ymold depending from said crosshead, a cam shaft journaled in the machine, means to turn the cam shaft, a pair ot cams fastened to the cam shaft, a pair of lguided reciprocating members in the machine, connections between said mem bers and said cro-sshead, said cams adapted to reciprocate said members, a second reciprocating cross head in the machine, plungers depending from the second cross head coaetingwith both ot said molds, stripper reds extendingr into the lower mold, a bar connectinnY the lower ends of the stripper rods, a second pair ot cams fastened to the cam sha"t coactingwith said bar to elevate the stripper rods to loosen the objects made by the molds from the same.

(S. ln a molding,r machine the combination of a table connected thereto, a bot-tom mold detachably fastened to said table, a stripper` plate detachably located upon the top face of thev bottom mold, a cross head guide-d in the ,ltllllill 2111 Upper mold detaoh'ably cennected to said crosshead, a cam shaft journaled in the machine, means to turn the cam shaft, cams fastened to the cam shaft, a pair ot guide members in the machine adapted to reciprocate, connections between said members and said crosshead, said cams adapted to reciprocate said members, a second reciprocating erosshead in the machine and plunger-s dependingl from the second crosshead coacting with said molds.

7. ln a molding` machine the combination of a pair of legs, a pair ot' guide frames above said legs, an auxiliary table connected to said frames, a bottom mold detachably fastened to the upper face of said table, a crosshead with its ends guided in ,guide openings in said trames, an upper mold detachably connected to said crosshead, a cam sha1-t journaled in the machine, cams tastened to the cam sha'lt, a pair of guided members in the machine adapted to reciprocate, connections between said members and said crosshead, a roller journaled adjacent to the upper end and a roller journaled adjacent to the lower end of each ot' said members, said cams coacting with said rollers to reciprocate said members, a second reciprocating crofshead in the machine and plungers depending' from said second crosshead coactinn' with said molds.

8. In a molding machine the combination of a pair ot legs, a platiorm supported upon the legs, a pair of guide frames supported upon the platform, an auxiliaryv table detachably connected to said frames above said platform, a bottom mold detachably 'fastened to the upper tace otl said table, a crosshead Vith its ends guided in `guide openings in said frames, an upper mold dctachably connected to said crosshead, a cam sha'tft journaled in the machine, cams tastened to the cam shaft, a pair of guided members in the machine adapted to reciprocate, connections between said members and said crosshead, said cams coacting' with said members to reciprocate them, a second reciprocatina'` crosshead in the machine, plungers deiliendiimj from the second Crosshead coacting with said molds, a main shaft journaled in the machine, a pinion fastened to cach end oll the main shatt, a spur gear 'tastened to each end of the 'am sli-att meshing with the pinion on the main sha'tt on the same side ot' thel machine, a coimectiug rod with one end pinned to one oi said spur gears and its other end connected to the second crosshead, a second connecting;` rod with onev end pinned to the' other spur rear and its other end connected to said second crosshead andnieans to turn the main shaft.

9. ln a molding machine the combination of a table, a crosshead guided in the machine, a cam shaftjournaled in the machine, means to .turn they cam shaft, cams fastened tov the Cam. shaft, a pair of guided members III) adapted to reciprocate in the machine, connections between said members and the crosshead, said cams adapted to reciprocate said members, a second reciprocating crosshead in the machine, a mold comprising' a top member with a plurality oit' cavities and a bottom member with a plurality of openings, means to detaehably lock the members of the mold to eachother, means to fasten the bottom member el the mold to said table, a middle plate comprisingv apair of members, between the top and bottom member of the mold ldf-xtachably locked in place, the members ot the middle plate having' on their adjoining edges openings with threads, and plunger-s depending from the second crosshead coaeting with said mold.

10. In a molding` machine the combination of a table connected thereto, a bottom mold fastened to the table, a stripper plate detachably located upon the top face of the .said bottom mold, a reciprocating cross head `guided in the machine, an upper mold connected to said cross head, a second cross head in the machine, means to reciprocate the second cross head, plungers depending from the second cross head coactins;` With both molds, stripper rods extending into the lower molds, a bar connecting` the lower ends of the stripper rods and means to-raise said bar to elevate the stripper rods to loosen the objects made by the molds from the same.

Signed at the borough of Manhattan, city of New York, in the county of New York and State ot ANew York, this 12th day ot F5 September, A. D. 1924.

HERMAN SONNENBERG. 

